The 2001 Mazda B2500 is a 2-door, 3-seat Regular Side, available in 4 trims, ranging from the SX (M5) to the SE (A4). Upon introduction, the $12,345 SX (M5) is equipped with a standard 2.5L, 4-cylinder, engine that achieves 22-mpg in the city and 26-mpg on the highway. a Manual transmission is standard. The $15,545 SE (A4) is equipped with a standard 2.5L, 4-cylinder, engine that achieves 20-mpg in the city and 24-mpg on the highway. an Automatic transmission is standard.